Is there any thing in the codes that would prevent a water line into a building to be left in place 5' outside of a building and not be used?
We are working on a school addition where the site contractor bought the new water line from a hydrant to within 5' of the building. The waterline was to run underneath the building 100' to a mechanical room. There is an issue with the depth that the water line can be installed because of a severe rock problem that was unknown. We are proposing to install a new riser at the existing water main location in the existing part of the building and leave the water new water line in place outside of the building. Any thoughts would be greatly appreciated. Craig Leadbetter Safeguard of Marquette (P)906-475-9955 Ext 101 (F) 906-475-5474 (C) 906-362-5393 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Timothy W Goins Sent: Tuesday, November 18, 2008 10:33 AM To: sprinklerforum@firesprinkler.org Subject: Existing Pipe Scheduled System Water Supply A water supply analysis (Flowtest) for the proposed installation of a backflow preventer on a pipe scheduled system (Nursing Home) indicates that there is 531 GPM @ 8 PSI at the BOR. It will need a fire pump and storage tank. Please help me with the follwing questions... 1. The nursing home is "Light Hazard" but has "Ordinary Hazard" areas such as the Kitchen and Linen storage areas. I say we need to provide for the "Ordinary Hazard" (Worse Case) but the owner naturally wants the lower demand. What say ye? 2. 11.2.2.7 NFPA 13 2007 says I can use the lower gpm/duration of Table 11.2.2.1 when the system is monitored, but 11.2.2.9 says I can only use the lower values when the building is noncombustible or there is compartmentalization of 3000 ft² (LH) or 4000 ft² (OH). The building is NOT noncombustible construction and does not meet the compartmentalization criteria. Does this statement pertain to existing structures? 3. Since I will have to use a pump and tank, can I deduct the hose streams from the chosen supply requirements of Table 11.2.2.1? Timothy W Goins A & T Services "For I am not ashamed of the gospel of Christ: for it is the power of God unto salvation to everyone that believeth; " KJV Romans 1:16 Reply to <mailto:[EMAIL PROTECTED]> mailto:[EMAIL PROTECTED] _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [EMAIL PROTECTED] To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [EMAIL PROTECTED] To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
